To begin the lesson students will take a quiz on the history of genetics as well as general genetic vocabulary that is necessary to understand topics that will be covered at a later time. Students will then be reintroduced to monohybrid Punnett squares which has been discussed briefly.
To begin the lesson, I will answer any last questions that students may have about the history of genetics or vocabulary issues. The quiz will then be taken.
ActivitiesFollowing the quiz, I will move onto demonstrating monohybrid punnett squares using variables that were not covered when previously practicing them with sex cells. We will review the test crosses that we completed in previous lessons before discussing other variation. Because students have been assessed on their knowledge of the terms needed to complete crosses, they are now prepared to complete them. As a class, students will watch a video discussing how to complete and analyze monohybrid crosses. This video explains how phenotype changes as a result of the genotype of an individual. We will discuss breeding of dogs and how being a pure bred dog means that they are of a purely dominant or recessive genotype. We will talk about how scientists in Soviet Russia began a quest to domesticate silver fox. I will ask the class questions such as, "Why do you think as the fox became more domesticated, their features became softer, more docile?", "What do you think this means to dog breeders?", "Do you think this could be achieved with any animal?". Students will then be asked to complete analyze the results of different crosses from the worksheet.
Closing/postlab
As an exit slip I will have students answer a couple questions, "What makes people generally more attracted to a Golden Retriever than a Rottweiler? What are the features that make them more attractive?". I will also have students formulate a question that they have regarding the lesson. They will also have the option of attempting to complete a dihybrid cross, as this is what will be covered the next class.
Title- Punnett Intended
Overview
To begin the lesson students will take a quiz on the history of genetics as well as general genetic vocabulary that is necessary to understand topics that will be covered at a later time. Students will then be reintroduced to monohybrid Punnett squares which has been discussed briefly.Standards (Links)
LS3 (9-11) - 6LS3 (9-11) - 7
Objectives
Students will be able to...Materials / Preparation Notes
Opening
To begin the lesson, I will answer any last questions that students may have about the history of genetics or vocabulary issues. The quiz will then be taken.ActivitiesFollowing the quiz, I will move onto demonstrating monohybrid punnett squares using variables that were not covered when previously practicing them with sex cells. We will review the test crosses that we completed in previous lessons before discussing other variation. Because students have been assessed on their knowledge of the terms needed to complete crosses, they are now prepared to complete them. As a class, students will watch a video discussing how to complete and analyze monohybrid crosses. This video explains how phenotype changes as a result of the genotype of an individual. We will discuss breeding of dogs and how being a pure bred dog means that they are of a purely dominant or recessive genotype. We will talk about how scientists in Soviet Russia began a quest to domesticate silver fox. I will ask the class questions such as, "Why do you think as the fox became more domesticated, their features became softer, more docile?", "What do you think this means to dog breeders?", "Do you think this could be achieved with any animal?". Students will then be asked to complete analyze the results of different crosses from the worksheet.
Closing/postlab
As an exit slip I will have students answer a couple questions, "What makes people generally more attracted to a Golden Retriever than a Rottweiler? What are the features that make them more attractive?". I will also have students formulate a question that they have regarding the lesson. They will also have the option of attempting to complete a dihybrid cross, as this is what will be covered the next class.